package com.itheima.prize.api.config;

import com.itheima.prize.commons.utils.ApiResult;
import com.itheima.prize.commons.utils.RedisUtil;
import com.alibaba.fastjson.JSON;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

//拦截登录失效的请求
public class RedisSessionInterceptor implements HandlerInterceptor {
    @Autowired
    private RedisUtil redisUtil;

    //@Override
    //public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
//        //无论访问的地址是不是正确的，都进行登录验证，登录成功后的访问再进行分发，404的访问自然会进入到错误控制器中
//        HttpSession session = request.getSession();
//        if (session!= null && session.getAttribute("user")!=null) {
//            return true;
//        }else{
//            response401(response);
//            return false;
//        }
    //}

    private void response401(HttpServletResponse response) {
//        response.setCharacterEncoding("UTF-8");
//        response.setContentType("application/json; charset=utf-8");
//
//        try {
//            response.getWriter().print(JSON.toJSONString(new ApiResult(-1, "用户未登录！", null)));
//        } catch (IOException e) {
//            e.printStackTrace();
//        }
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

    }
}
